Propane tank vending machine assembly



FIG. 1 is a front perspective view of a propane tank vending machine assembly of the present invention;

FIG 2 is a left side elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof; and,

FIG. 5 is a top plan view thereof.

The bottom plan and rear elevation views are omitted and form no part of the claimed design.

The propane tank vending machine is shown on an enlarged scale in FIGS. 2-5. 

The ornamental design for a propane tank vending machine assembly, as shown and described. 